摘要
通过对陕北白绒山羊体尺和产绒量相关回归分析,建立了体尺和产绒量的最优回归模型。结果表明:胸深可以作为预测陕北白绒山羊产绒量和选择的主要体尺指标,陕北山羊体尺-产绒量最优回归模型为y=0.323X4。
With the correlation and regression analysis of body size and cashmere yield for Shanbei White Cashmere Goats,established the optimum regression equations between body size and cashmere yield by the SPSS 13.0 software.The results indicated that the chest depth could be considered as a major index to predict the cashmere yield in the selection of Shanbei White Cashmere Goats.The optimal regression model of Shanbei White Cashmere goats＇body size and cashmere yield was y=0.323X4.
出处
《家畜生态学报》
2010年第5期67-70,共4页
Journal of Domestic Animal Ecology
基金
陕西省榆林市"61211"科技创新工程建设项目(cyh200803)
关键词
陕北白绒山羊
体尺
产绒量
通径分析
回归分析
Shanbei White Cashmere Goats
body size
cashmere yield
path analysis
regression analysis
